BigSurRidgewalker wrote:
Since it is "in" the Swan, it should be the "foie gras" nebula.

https://en.wikipedia.org/wiki/Foie_gras wrote:
<<Foie gras (French for "fat liver") is a luxury food product made of the liver of a duck or goose that has been specially fattened. Gavage-based foie gras production is controversial, due mainly to the animal welfare concerns about force-feeding, intensive housing and husbandry, and enlarging the liver to 10 times its usual volume. A number of countries and jurisdictions have laws against force-feeding, and the production, import or sale of foie gras; even where it is legal, a number of retailers decline to stock it. The industry repeatedly faces accusations of torture and cruelty.>>

https://en.wikipedia.org/wiki/Swan wrote:
<<Swan meat was regarded as a luxury food in England in the reign of Elizabeth I. A recipe for baked swan survives from that time: "To bake a Swan Scald it and take out the bones, and parboil it, then season it very well with Pepper, Salt and Ginger, then lard it, and put it in a deep Coffin of Rye Paste with store of Butter, close it and bake it very well, and when it is baked, fill up the Vent-hole with melted Butter, and so keep it; serve it in as you do the Beef-Pie." French satirist François Rabelais wrote in Gargantua and Pantagruel that a swan's neck was the best toilet paper he had encountered.>>

It looks like two carnations bursting forth from the cosmic void. Before discovering that someone below already suggested this, it's the first image that came to mind when I looked at this amazing photograph. Considering also that the genus name for carnation is Dianthus, which means divine flower, "Carnation Nebula" would be an appropriate name for this object...